3390780 has 48 divisors (see below), whose sum is σ = 9805824. Its totient is φ = 874560.

The previous prime is 3390763. The next prime is 3390787. The reversal of 3390780 is 870933.

It is a super-2 number, since 2×3390780² = 22994778016800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (204288).

Almost surely, 2^3390780 is an apocalyptic number.

3390780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3390780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4902912).

3390780 is an abundant number, since it is smaller than the sum of its proper divisors (6415044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3390780 is a wasteful number, since it uses less digits than its factorization.

3390780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 3390780 is about 1841.4070706935. The cubic root of 3390780 is about 150.2334143742.

The spelling of 3390780 in words is "three million, three hundred ninety thousand, seven hundred eighty".